JP4380898B2 - Wiring device mounting device for hollow wall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, when attaching the wiring device to the hollow wall, about the hollow wall wiring accessory mounting equipment for mounting in advance the hollow wall.
[0002]
[Prior art]
Conventionally, when mounting a wiring device such as an outlet or switch on a hollow wall made of gypsum board, etc., a mounting hole for the wiring device is drilled in advance, and a mounting frame is placed outside the mounting hole, and a clamp is placed inside the mounting hole Then, the mounting frame and the clamp fitting are screwed so as to sandwich the hollow wall, and the mounting frame is fixed to the hollow wall.
[0003]
[Problems to be solved by the invention]
However, there is a risk that the mounting frame will be displaced only when it is sandwiched between the mounting frame and the clamp, and it is conceivable that a claw portion is formed in the clamp and the claw bites into the hollow wall. When gypsum board is used for the wall, the gypsum board is excellent in fire resistance and corrosion resistance, but the surface is only protected by a sheet of paper etc. If the part is hardened, the gypsum board may be damaged by the stress caused by long-term use of the wiring device.
[0004]
The present invention is to solve the above problems, it is possible to reliably fix the hollow wall, and its object is provide Hisage damage difficult hollow wall wiring device attachment device gypsum board.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, a hollow wall wiring device mounting apparatus according to the present invention includes a mounting frame to which the wiring device is mounted, and a pinch bracket that is rotatably mounted on the mounting frame with mounting screws. And a mounting device for a hollow wall that is fixed to the hollow wall by clamping the peripheral edge of the mounting hole of the wiring device drilled in the hollow wall with the mounting frame and the clamp fitting by tightening the mounting screw. The pinch fitting includes a contact portion that is connected to the mounting screw threaded portion and is in close contact with the inner peripheral edge of the mounting hole of the wiring device that is drilled in the hollow wall when the mounting screw is tightened. A position-fixing claw portion that is connected to the corresponding contact portion and fixes a clamp fitting to the inner peripheral edge portion of the mounting hole, and the contact portion is screwed onto the mounting screw via a first elastic deformation portion. It provided continuously in part, obliquely from the position fixing claw portion through the second elastic deformation portion the contact portion Characterized in that it is continuously provided upward.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a hollow wall wiring device mounting device (hereinafter referred to as mounting device) A according to the present invention. This mounting device A is composed of a mounting frame 1 and a clamp 2 and mounting screws 3 are mounted on the mounting frame 1. Are screwed into the screw holes 5 of the sandwiching metal fitting 2 through the insertion holes 4 formed on both sides (see FIG. 2), and the sandwiching metal fitting 2 is inserted into the mounting hole 7 drilled in the hollow wall 6 and attached. By tightening the screw 3, the projecting portion 1 a of the mounting frame 1 and the clamp 2 can be fixed to the hollow wall 6 so that the peripheral portion of the mounting hole 7 is clamped. A maximum of three wiring devices B can be attached to the opening 8 of the mounting frame 1.
[0007]
As shown in FIG. 3, the attachment frame 1 has an opening 8 for attaching a wiring device in the center, and an extension hole 1 a protruding at both ends in the longitudinal direction is formed with an insertion hole 4 through which the attachment screw 3 is inserted. Support holes 10 are formed on both sides of the insertion hole 4 so as to rotatably support a clamp 2 to be described later. A support piece 10 a is formed so as to protrude inward from a part of the inner peripheral surface of the support hole 10. The mounting hole 7 drilled in the hollow wall 6 may be formed so that both ends of the mounting frame 1 overlap the edge of the outer surface of the mounting hole 7.
[0008]
As shown in the front view, the right side view, and the bottom view of FIGS. 4A, 4 </ b> B, and 4 </ b> C, the pinch metal fitting 2 is configured by a metal plate that is bent in an L shape when viewed from the side, and the vertical plate portion 11. A hook portion 12 is formed on both ends of the upper portion of the frame, and the hook portion 12 is engaged with the support piece 10a formed in the support hole 10 of the mounting frame 1 so as to sandwich the support piece 10a. The metal fitting 2 can be turned up and down.
[0009]
The horizontal plate portion 13 of the clamp 2 is formed with an attachment screw screw portion 14 provided with a female screw portion 5 to which the attachment screw 3 is screwed at a central portion near the vertical plate portion 11, and this screw screw portion. 14 is provided with a contact portion 15 that contacts the inner edge of the hollow wall 6. A first elastic deformation portion 16 is formed at a portion where the screwed portion 14 and the contact portion 15 are connected. The first elastic deformation portion 16 is composed of the remaining three connection portions cut out by the two long holes 17, and the contact portion 15 is screwed by the connection portion 16 being bent (elastically deformed). It can be rotated in the vertical direction with respect to the portion 14.
[0010]
The position fixing claw portion 20 is connected to the contact portion 15 obliquely upward, and the upper end edge 20a of the position fixing claw portion 20 is formed in a sawtooth shape. A second elastic deformation portion 21 is formed at a portion where the contact portion 15 and the position fixing claw portion 20 are connected. The second elastic deformation portion 21 is constituted by a connecting portion having a narrower width than the position fixing claw portion 20, and the position fixing claw is deformed by bending (elastically deforming) the connecting portion (second elastic deformation portion) 21. The part 20 can be rotated in the vertical direction with respect to the contact part 15. Reference numeral 22 denotes a reinforcing rib that protrudes from the lower surface of the contact portion 15 and reinforces the contact portion 15.
[0011]
The first elastic deformation portion 16 and the second elastic deformation portion 21 do not necessarily have a narrow width, and are thinner than the contact portion 15 and the position fixing claw portion 20. Alternatively, it may be constituted by a groove.
[0012]
According to the mounting apparatus A having the above-described configuration, as shown in FIG. 5, the contact portions 15 of both the clamps 2 are mounted in the mounting holes 7 in a state where the mounting frame 1 and the clamps 2 are lightly connected by the mounting screws 3. To the hollow wall 6 so as to enter the back side surface 6a of the hollow wall 6. When the mounting screw 3 is tightened in this state, the tip 20a of the position fixing claw 20 comes into contact with the back side surface 6a of the hollow wall 6, but when the mounting screw 3 is further tightened, the second elastic deformation portion 21 is bent. The tip 20 a of the position fixing claw 20 is in a state of being lightly bitten into the back side surface 6 a of the hollow wall 6. At this time, the contact portion 15 also contacts the back side surface 6a of the hollow wall 6. However, the first elastic deformation portion 16 is bent and the contact portion 15 is pressed against the back side surface 6a of the hollow wall 6 so that the mounting frame 1 protrudes. The part 1a and the contact part 15 are in a state of sandwiching the periphery of the mounting hole 7 (see FIG. 6).
[0013]
In this state, the contact portion 15 is in pressure contact with the protective sheet on the surface of the gypsum board constituting the hollow wall 6 and the tip 20a of the position fixing claw 20 is engaged with the protective sheet. Even if the wiring device B is repeatedly used and a load is applied to the mounting frame 1, the position of the mounting frame 1 does not shift. In addition, since the position fixing claw 20 does not bite so hard that the tip 20a breaks the gypsum board due to the bending of the second elastic deformation portion 21, the load is applied to the mounting device A by repeatedly using the wiring device B. Even if applied, the hollow wall 6 is not damaged.
[0014]
Moreover, since the sandwiching metal 2 and the mounting frame 1 are formed to have substantially the same width, and the sandwiching metal 2 is attached to the mounting frame 1 so as to be pivotable up and down, the mounting device A can be easily attached to the hollow wall 6. It can be set and work efficiency can be improved.
[0015]
【The invention's effect】
According to the present invention, when the mounting screw is tightened, the first elastic deformation portion is bent and the entire contact portion is pressed against the inner wall surface of the hollow wall, and the position fixing claw portion is bitten into the inner wall surface, Can be securely fixed to the hollow wall. Moreover, since the position fixing claw portion does not bite into the hollow wall strongly and the hollow wall is not greatly damaged by bending of the second elastically deformable portion, it can be attached by using a wiring device for a long time. The load applied to the device will not damage the hollow wall.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a mounting device according to the present invention. FIG. 2 is a perspective view illustrating the relationship between the mounting device, a wiring device, and a hollow wall. FIG. 3 is a front view of a mounting frame. ) (B) (c) is a front view, a right side view and a bottom view of the clip metal fitting. [FIG. 5] A cross-sectional view illustrating a state in which the mounting device is set on the hollow wall. [FIG. Sectional view explaining the fixed state 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 Mounting frame 2 Clip metal fitting 3 Mounting screw 6 Hollow wall 7 Mounting hole 14 Mounting screw screwing part 15 Contact part 16 1st elastic deformation part 20 Position fixing nail | claw part 21 2nd elastic deformation part

Claims (1)

A wiring frame having a mounting frame to which the wiring device is attached, and a clamp fitting rotatably attached to the mounting frame by a mounting screw, and the wiring device drilled in the hollow wall by tightening the mounting screw. A wiring device mounting device for a hollow wall that is fixed to a hollow wall by sandwiching the peripheral portion of the mounting hole with the mounting frame and the clamp fitting,
The clamp fitting includes a contact portion that is connected to a mounting screw threaded portion and is in close contact with the inner peripheral edge of the mounting hole of the wiring device that is drilled in the hollow wall when the mounting screw is tightened. And a position fixing claw portion for fixing the clip metal to the inner peripheral edge portion of the mounting hole, and the contact portion is connected to the mounting screw screw portion via the first elastic deformation portion. And the position fixing claw portion is connected to the contact portion obliquely upward from the contact portion via a second elastic deformation portion.

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